Super to 1z0 808 pdf

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Q121. Which two statements are true for a two-dimensional array? 

A. It is implemented as an array of the specified element type. 

B. Using a row by column convention, each row of a two-dimensional array must be of the same size. 

C. At declaration time, the number of elements of the array in each dimension must be specified. 

D. All methods of the class Object may be invoked on the two-dimensional array. 

Answer: A,D 

Q122. Given the code fragment: 

A. Super Sub Sub 

B. Contract Contract Super 

C. Compilation fails at line n1 

D. Compilation fails at line n2 

Answer:

Q123. Given: 

class MarksOutOfBoundsException extends IndexOutOfBoundsException { } 

public class GradingProcess { 

void verify(int marks) throws IndexOutOfBoundsException { 

if (marks > 100) { 

throw new MarksOutOfBoundsException(); 

if (marks > 50) { 

System.out.print("Pass"); 

} else { 

System.out.print("Fail"); 

public static void main(String[] args) { 

int marks = Integer.parseInt(args[2]); 

try { 

new GradingProcess().verify(marks)); 

} catch(Exception e) { 

System.out.print(e.getClass()); } } } 

And the command line invocation: 

Java grading process 89 50 104 

What is the result? 

A. Pass 

B. Fail 

C. Class MarketOutOfBoundsException 

D. Class IndexOutOfBoundsException 

E. Class Exception 

Answer:

Explanation: The value 104 will cause a MarketOutOfBoundsException 

Q124. Which of the following can fill in the blank in this code to make it compile? 

A. abstract 

B. final 

C. private 

D. default 

E. int 

Answer:

Explanation: 

From Java SE 8, we can use static and/or default methods in interfaces, but they should be non abstract methods. SO in this case using default in blank is completely legal. Hence option C is correct. Option A is incorrect as given method is not abstract, so can't use abstract there. Options B and E are incorrect as we can't have non abstract method interface if they are not default or static. httpsy/docs.oracle.com/javase/tutorial/iava/landl/defaultmethods.html 

Q125. Given: 

A. X XX 

B. X Y X 

C. Y Y X 

D. Y YY 

Answer:

Q126. Given: 

What would be the output, if it is executed as a program? 

A. name =, pass = 

B. name = null, pass = null 

C. name = null, pass = false 

D. name = null pass = true E. Compile error. 

Answer:

Explanation: 

Both name and pass variables are instance variables, and we haven't given them any 

values, so they take their default values. For Boolean default value is false and for string 

which is not a primitive type default is null So at line 7, null will printed as the value of the 

variable name, and at line 8 false will be printed. Hence Option C is correct. 

As explained above options A, B and D are incorrect. 

Code compiles fine so option E is incorrect. 

Reference: 

https://docs.oracle.com/javaseAutorial/java/javaOOAariables.html 

Q127. View the exhibit: 

public class Student { 

public String name = ""; 

public int age = 0; 

public String major = "Undeclared"; 

public boolean fulltime = true; 

public void display() { 

System.out.println("Name: " + name + " Major: " + major); } 

public boolean isFullTime() { 

return fulltime; 

Which line of code initializes a student instance? 

A. Student student1; 

B. Student student1 = Student.new(); 

C. Student student1 = new Student(); 

D. Student student1 = Student(); 

Answer:

Q128. Given: 

What is the result? 

A. Initialized Started 

B. Initialized Started Initialized 

C. Compilation fails 

D. An exception is thrown at runtime 

Answer:

Q129. Given: 

public class TestField { 

int x; 

int y; 

public void doStuff(int x, int y) { 

this.x = x; 

y =this.y; 

public void display() { 

System.out.print(x + " " + y + " : "); 

public static void main(String[] args) { 

TestField m1 = new TestField(); 

m1.x = 100; 

m1.y = 200; 

TestField m2 = new TestField(); 

m2.doStuff(m1.x, m1.y); 

m1.display(); 

m2.display(); 

What is the result? 

A. 100 200 : 100 200 

B. 100 0 : 100 0 : 

C. 100 200 : 100 0 : 

D. 100 0 : 100 200 : 

Answer:

Q130. public class ForTest { 

public static void main(String[] args) { 

int[] arrar = {1,2,3}; 

for ( foo ) { 

Which three are valid replacements for foo so that the program will compiled and run? 

A. int i: array 

B. int i = 0; i < 1; i++ 

C. ;; 

D. ; i < 1; i++ 

E. ; i < 1; 

Answer: A,B,C 

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